I made the vinaigrette while chopping the ingredients for the salad.
In a small sauce pan, I added 2 tbsp of olive oil and 1/2 of a medium yellow onion, diced. I let the onions sauté until they were tender. Meanwhile, I cleaned and chopped 4 leaves of romaine lettuce, 1 small stalk of celery, a handful of green grapes (1/2 or so) and about 1/2 cup of cooked chicken (removed from a roast I made earlier in the week).
I also chopped up a Bosc pear. It had ripened unevenly, so only a portion was ripe and the rest was not. This happened to inspire the dish. I had planned to just chop the pear up on the salad and add some oil and balsamic vinegar. But now I needed to do something with the stubbornly unripened part of the pear. I put the ripe chunks of pear on the salad. The rest I reserved for the salad dressing. I added a bit of pepper and finished up the vinaigrette.
So now my onions are nice and soft. I added the stripped off leaves from two tarragon stems. Then I added the chopped up pieces of pear. I let them sauté for a bit before adding the fresh-squeezed juice from 1 lemon and a bit of salt. I continued to let them simmer until tender and then mashed the pears up with my fork. I thought about pureeing the mix, but was too hungry to get my Magic Bullet out and puree. So, i just mashed a bit with a fork and added 2 TBSP of white wine vinegar – I went by taste more than volume, adding until it was light and fresh. Then, just for a bit of color and earthiness, i added about 1 tsp of finely chopped fresh parsley.
This is a subtly flavored vinaigrette. The pear adds a mellow sweetness, the onion a bit of heat, the lemon brightens it up and the tarragon is just heaven brought down to earth and infuse in a plant. The white wine vinegar just marries all those flavors into a wonderfully light vinaigrette. This made enough for 4 large salads, so i dressed the salad I made and stored the remaining vinaigrette for some more lovely salads.